Dutch:
* "Deh-k'necht" (with the 'k' sound like in "key" and the 'ch' sound like in "loch") This is the most common pronunciation in Dutch, as it's a common Dutch surname.
German:
* "Deh-k'necht" (with the 'k' sound like in "key" and the 'ch' sound like in "loch") This is a possible pronunciation in German, though less common than in Dutch.
English:
* "Dee-k'necht" (with the 'k' sound like in "key" and the 'ch' sound like in "loch") This is a possible pronunciation if the name is being used in an English context.
Important Note: It's always best to ask the person with the name how they prefer it to be pronounced.